Witek Lukasz, Neiva Rodrigo, Alifarag Adham, Shahraki Farnaz, Sayah Ghazaleh, Tovar Nick, Lopez Christopher D, Gil Luiz, Coelho Paulo G
Int J Periodontics Restorative Dent. 2019 Jan/Feb;39(1):65-71. doi: 10.11607/prd.3504.
This study sought to qualitatively and quantitatively evaluate the effect of osteotomy preparation by conventional (control group) or OD (OD group) instrumentation on osteotomy healing. An incision of 10 cm was made in the anteroposterior direction over the hip in five sheep, and 15 osteotomies were prepared in the left ilium of the sheep (n = 3/sheep). Three different instrumentation techniques were utilized: (1) conventional/regular drilling (R [recommended by manufacturer]) in a 3-step series of a 2-mm pilot, 3.2-mm, and 3.8-mm twist drills; (2) OD clockwise (OD-CW) drilling with Densah Bur (Versah) 2.0-mm pilot, 2.8-mm, and 3.8-mm multi-fluted tapered burs; and (3) OD counterclockwise (OD-CCW) drilling with Densah Bur 2.0-mm pilot, 2.8-mm, and 3.8-mm multi-fluted tapered burs. Drilling was performed at 1,100 rpm with saline irrigation. Qualitative histomorphometric analysis of the osteotomies after 6 weeks did not show any healing impairment due to the instrumentation. Histologic analysis shows bone remodeling and growth in all samples, irrespective of osteotomy preparation technique, with the presence of bone chips observed along the length of the osteotomy wall in sites subjected to osseodensification drilling.
本研究旨在定性和定量评估传统（对照组）或骨密度仪（OD组）器械进行截骨术准备对截骨愈合的影响。在五只绵羊的髋部前后方向做一个10厘米的切口，并在绵羊的左髂骨制备15处截骨术（每只绵羊n = 3处）。采用了三种不同的器械技术：（1）传统/常规钻孔（R[制造商推荐]），分三步使用2毫米导向钻、3.2毫米和3.8毫米麻花钻；（2）使用Densah Bur（Versah）2.0毫米导向钻、2.8毫米和3.8毫米多刃锥形磨钻进行顺时针OD（OD-CW）钻孔；（3）使用Densah Bur 2.0毫米导向钻、2.8毫米和3.8毫米多刃锥形磨钻进行逆时针OD（OD-CCW）钻孔。钻孔以1100转/分钟的速度进行，并使用生理盐水冲洗。6周后对截骨术进行的定性组织形态计量学分析未显示器械操作导致任何愈合受损。组织学分析表明，所有样本均有骨重塑和生长，无论截骨术准备技术如何，在进行骨密度增加钻孔的部位，沿截骨壁长度观察到有骨屑存在。
